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PASN: Define PMKSA helper functions for initiator and responder

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Define helper functions to init, add, get, remove, flush, and deinit
PMKSA cache for PASN initiator and responder. P2P devices can be in
a role of pairing initiator and responder. Hence define a cache for
each role separately.

Signed-off-by: Shivani Baranwal <quic_shivbara@quicinc.com>
This commit is contained in:
Shivani Baranwal 2024-08-05 01:43:58 +05:30 • committed by Jouni Malinen
parent cb9b1f8c5a
commit b7de417c8a
3 changed files with 140 additions and 0 deletions
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22
src/pasn/pasn_common.h
View file

@ -207,6 +207,17 @@ void pasn_set_initiator_pmksa(struct pasn_data *pasn,
void pasn_set_responder_pmksa(struct pasn_data *pasn,
struct rsn_pmksa_cache *pmksa);
int pasn_set_pt(struct pasn_data *pasn, struct sae_pt *pt);
struct rsn_pmksa_cache * pasn_initiator_pmksa_cache_init(void);
void pasn_initiator_pmksa_cache_deinit(struct rsn_pmksa_cache *pmksa);
int pasn_initiator_pmksa_cache_add(struct rsn_pmksa_cache *pmksa,
const u8 *own_addr, const u8 *bssid, u8 *pmk,
size_t pmk_len, u8 *pmkid);
int pasn_initiator_pmksa_cache_get(struct rsn_pmksa_cache *pmksa,
const u8 *bssid, u8 *pmkid, u8 *pmk,
size_t *pmk_len);
void pasn_initiator_pmksa_cache_remove(struct rsn_pmksa_cache *pmksa,
const u8 *bssid);
void pasn_initiator_pmksa_cache_flush(struct rsn_pmksa_cache *pmksa);
/* Responder */
void pasn_set_noauth(struct pasn_data *pasn, bool noauth);
@ -218,6 +229,17 @@ void pasn_set_rsnxe_ie(struct pasn_data *pasn, const u8 *rsnxe_ie);
void pasn_set_custom_pmkid(struct pasn_data *pasn, const u8 *pmkid);
int pasn_set_extra_ies(struct pasn_data *pasn, const u8 *extra_ies,
size_t extra_ies_len);
struct rsn_pmksa_cache * pasn_responder_pmksa_cache_init(void);
void pasn_responder_pmksa_cache_deinit(struct rsn_pmksa_cache *pmksa);
int pasn_responder_pmksa_cache_add(struct rsn_pmksa_cache *pmksa,
const u8 *own_addr, const u8 *bssid, u8 *pmk,
size_t pmk_len, u8 *pmkid);
int pasn_responder_pmksa_cache_get(struct rsn_pmksa_cache *pmksa,
const u8 *bssid, u8 *pmkid, u8 *pmk,
size_t *pmk_len);
void pasn_responder_pmksa_cache_remove(struct rsn_pmksa_cache *pmksa,
const u8 *bssid);
void pasn_responder_pmksa_cache_flush(struct rsn_pmksa_cache *pmksa);
int pasn_get_akmp(struct pasn_data *pasn);
int pasn_get_cipher(struct pasn_data *pasn);

59
src/pasn/pasn_initiator.c
View file

@ -26,6 +26,65 @@
#include "pasn_common.h"
struct rsn_pmksa_cache * pasn_initiator_pmksa_cache_init(void)
{
return pmksa_cache_init(NULL, NULL, NULL, NULL, NULL);
}
void pasn_initiator_pmksa_cache_deinit(struct rsn_pmksa_cache *pmksa)
{
return pmksa_cache_deinit(pmksa);
}
int pasn_initiator_pmksa_cache_add(struct rsn_pmksa_cache *pmksa,
const u8 *own_addr, const u8 *bssid, u8 *pmk,
size_t pmk_len, u8 *pmkid)
{
if (pmksa_cache_add(pmksa, pmk, pmk_len, pmkid, NULL, 0, bssid,
own_addr, NULL, WPA_KEY_MGMT_SAE, 0))
return 0;
return -1;
}
void pasn_initiator_pmksa_cache_remove(struct rsn_pmksa_cache *pmksa,
const u8 *bssid)
{
struct rsn_pmksa_cache_entry *entry;
entry = pmksa_cache_get(pmksa, bssid, NULL, NULL, NULL, 0);
if (!entry)
return;
pmksa_cache_remove(pmksa, entry);
}
int pasn_initiator_pmksa_cache_get(struct rsn_pmksa_cache *pmksa,
const u8 *bssid, u8 *pmkid, u8 *pmk,
size_t *pmk_len)
{
struct rsn_pmksa_cache_entry *entry;
entry = pmksa_cache_get(pmksa, bssid, NULL, NULL, NULL, 0);
if (entry) {
os_memcpy(pmkid, entry->pmkid, PMKID_LEN);
os_memcpy(pmk, entry->pmk, entry->pmk_len);
*pmk_len = entry->pmk_len;
return 0;
}
return -1;
}
void pasn_initiator_pmksa_cache_flush(struct rsn_pmksa_cache *pmksa)
{
return pmksa_cache_flush(pmksa, NULL, NULL, 0, false);
}
void pasn_set_initiator_pmksa(struct pasn_data *pasn,
struct rsn_pmksa_cache *pmksa)
{

59
src/pasn/pasn_responder.c
View file

@ -26,6 +26,65 @@
#include "pasn_common.h"
struct rsn_pmksa_cache * pasn_responder_pmksa_cache_init(void)
{
return pmksa_cache_auth_init(NULL, NULL);
}
void pasn_responder_pmksa_cache_deinit(struct rsn_pmksa_cache *pmksa)
{
return pmksa_cache_auth_deinit(pmksa);
}
int pasn_responder_pmksa_cache_add(struct rsn_pmksa_cache *pmksa,
const u8 *own_addr, const u8 *bssid, u8 *pmk,
size_t pmk_len, u8 *pmkid)
{
if (pmksa_cache_auth_add(pmksa, pmk, pmk_len, pmkid, NULL, 0, own_addr,
bssid, 0, NULL, WPA_KEY_MGMT_SAE))
return 0;
return -1;
}
int pasn_responder_pmksa_cache_get(struct rsn_pmksa_cache *pmksa,
const u8 *bssid, u8 *pmkid, u8 *pmk,
size_t *pmk_len)
{
struct rsn_pmksa_cache_entry *entry;
entry = pmksa_cache_auth_get(pmksa, bssid, NULL);
if (entry) {
os_memcpy(pmkid, entry->pmkid, PMKID_LEN);
os_memcpy(pmk, entry->pmk, entry->pmk_len);
*pmk_len = entry->pmk_len;
return 0;
}
return -1;
}
void pasn_responder_pmksa_cache_remove(struct rsn_pmksa_cache *pmksa,
const u8 *bssid)
{
struct rsn_pmksa_cache_entry *entry;
entry = pmksa_cache_auth_get(pmksa, bssid, NULL);
if (!entry)
return;
pmksa_cache_free_entry(pmksa, entry);
}
void pasn_responder_pmksa_cache_flush(struct rsn_pmksa_cache *pmksa)
{
return pmksa_cache_auth_flush(pmksa);
}
void pasn_set_responder_pmksa(struct pasn_data *pasn,
struct rsn_pmksa_cache *pmksa)
{